After walking a flat road, a familiar square passage glowing blue appeared in front of several people. The passage is still a stone staircase that slopes downward, Wang Yuan walked down, always holding the compass in his hand, and said: "I don't know if it's an illusion, I feel much more at ease with this compass in my hand." ”

"Maybe it will save us." Xiaoying said.

"It should be possible." Wang Yuan smiled and then looked at the compass in his hand by a faint light, and suddenly his face changed, and he said, "Wait, there is a problem here!! ”

"What's wrong?" Several people came to Wang Yuan.

Wang Yuan brought the compass in his hand to the eyes of several people, and several people found that the needle of the compass was turning in circle in Wang Yuan's hand.

"That's what you mean by being down-to-earth?" Qi Zhuang looked at Wang Yuan with wide eyes.

"His senses have always ......been inaccurate," Xiaoying muttered.

"No, was it okay just now?" Wang Yuan said.

"Maybe it's been a long time, it's broken." Qi Zhuang said.

"Impossible...... The compass is a magnet, how can it be broken? Wang Yuan said.

"Maybe there's a magnetic field in there......," Mr. Zhao said.

"Is there a magnet in there?" Qi Zhuang said.

"I think there may be metal deposits, and there is a magnetic field around the metal deposits, so there is interference with the compass." Zhao Bin said.

"Forget it, let's go." Wang Yuan embarrassedly put away the compass and continued to walk down.

"Shh......h Listen......" Xiaoying walked a few steps and suddenly stopped.

"What?" Qi Zhuang, who was in front, asked.

"There is movement......" At this time, Wang Yuan also noticed it.

A few people stopped and listened carefully. A rumbling sound came from the inside of the passage, which seemed to be mixed with the sound of a neat shout, and the sound seemed to be very regular and somewhat exciting.

"What sound?" Qi Zhuang said.

"Have you watched the TV series Romance of the Three Kingdoms? Like the drums and shouts of the march to battle? Zhao Bin said.

"Let's go, let's !!" After Wang Yuan said this, he walked down briskly.

"Wang Yuan, slow down, maybe this is really a ghost town." Qi Zhuang shouted from behind, but Wang Yuan still walked briskly without looking back.

As he went deeper, the sound became louder and louder, and Wang Yuan suddenly saw the end of the passage in front of him, and it was from here that the sound came. Wang Yuan rushed out of the passage quickly, and suddenly a row of stone railings appeared in front of him, he slammed into the railing, and found that he was now standing on a corridor built on the edge of a cliff, fortunately the stone railings were strong enough, otherwise he would have rushed out of the cliff, and at this time what he saw in front of him was a huge underground space, large and almost indescribable. The deafening sound came from the top of his diagonal top, and Wang Yuan moved his gaze there and then froze.

Then Qi Zhuang Xiaoying and the others also came over, they originally wanted to say that Wang Yuan was too reckless or something, but the three of them walked next to Wang Yuan and saw the scene in front of them. In the distance, a picture appears on top of the subterranean space, as if a movie is being shown.

The picture is a little intermittent, but you can still see the scene inside, on one side of the picture is a black oppressive army is divided into a number of neat squares, as if in formation, while on the other side is a scattered and orderly blue army, constantly changing formations. Both sides are beating drums and horns, and the two sides are two fierce tigers facing each other, ready to attack at any time. The sound of monstrous drums and the shouts of soldiers filled the entire underground space.

"Is this a movie?" Qi Zhuang said loudly.

"This seems to be the troops of the Qin State." Zhao Bin said. "In Chinese history, it seems that only the black armor used by the Qin State was used."

"It's changed!" Qi Zhuang shouted.

I saw that the front of the originally neat Qin State phalanx walked out of several rows of troops stretched vertically, and with a loud horn, these rows of troops began to move, but they couldn't see what they did, but at the same time, the troops on the opposite side fell a lot in an instant, and after a few horns, the blue troops on the opposite side began to appear in small chaos, but compared to the huge size of the troops, this casualty was almost negligible.

"That's the rows of archers of the Qin State." Zhao Bin said.

It seems that the shooting of the archers continues, and there are constantly soldiers falling in the blue units opposite. At this time, a wave of horns began to sound among the blue troops, and then the blue troops began to charge like black troops, and it was obvious that the generals of the blue troops could not sit still and blew the horns of the charge. At this time, the archers of the Qin ** team quickly retreated, and at the same time, the neat black phalanx behind them also began to charge like the blue troops rushing towards this side. When the two armies charged, deafening shouts erupted, and the moment the troops collided, the sound of killing shook the sky.

"Oh my God...... What kind of play is this? Qi Zhuang said.

After about ten minutes of fighting, gradually the flanks of the blue troops began to rout, obviously their flanks were weak, and the neatly formed Qin army seemed to grasp this weakness, the black wings were like eagles waving their wings after the opponent's flanks broke up and did not chase and kill, but moved closer to the middle, and finally surrounded the main force in the middle of the blue troops. In the end, the main force in the middle of the blue army was completely annihilated, and then the Qin army began to chase and kill, and finally disappeared from the picture.

After watching this scene, several people still came back to their senses, and the sound of the Qin army chasing and killing was still heard in the entire underground space, but the picture was gone.

"You saw that, right? It's not my hallucination, right? Wang Yuan still couldn't believe his eyes.

"My God, it's so enjoyable......" Qi Zhuang wiped the sweat from his forehead and said.

"Could this be the final decisive battle between the Qin State and the Hades Pond Kingdom?!" Zhao Bin also said excitedly.

"It's very likely, but how did they manage to record the war scene and show it to us two thousand years later?" Wang Yuan said.

"This place is not normal in the first place, we may be underestimating the wisdom of the ancients." Qi Zhuang said.

"Actually, this is not a deliberate recording by the ancients, they have not reached that level, this is the result of a series of coincidences." Zhao Bin said.

"How do you explain it?" Wang Yuan asked.

"I've read a story about the palace maid in the Forbidden City from a book before, but this can actually be explained." Zhao Bin said. "In 1992, during a thunderstorm, many tourists saw the palace maids in the Forbidden City and took photos of them, and at first people thought they were haunted. But then scientists gave the answer, because the red wall of the Forbidden City contains ferric oxide, when the lightning conducts electricity down, the change in the magnetic field of the palace wall can act as a video tape to record the image and sound, and when the lightning causes the same change in the magnetic field in the future, the previous scene will be projected, which seems to be called magnetic field photography. ”

"Is it such a coincidence?" Qi Zhuang said.

"Do you remember Wang Yuan's compass turning?" Zhao Bin said.

Wang Yuan took out the compass from his pocket at this time, and sure enough, it was still going back and forth.

"More than 2,000 years ago, the Qin ** team may have fought a big battle with the army of the Underworld here, and there may be rich metal deposits here, and there is a relatively strong magnetic field around, when there is a strong thunderstorm outside, the magnetic field here has undergone some changes, and the battle scene of the year has been recorded. And now when we pass by here, it's likely that it's thundering and raining outside, which makes the magnetic field change similar to that of the year, so we see this scene. ”

"This is really a fate that has been cultivated for 2,000 years......" Qi Zhuang said.

"Zhao Bin, you really know everything." Wang Yuan said.

"I know a little bit of everything, but I'm not good at anything." Zhao Bin said with a smile.

"No, according to you, the place where they fought is near here?" Qi Zhuang said.

After hearing this, Wang Yuan pointed to the bottom of the cliff and said, "Haven't you seen this yet?" Several people looked along the place Wang Yuan pointed, and under the faint blue light, the outline of a huge ancient city appeared below......

"It is very likely that this city was built later, and such a large space ......," Wang Yuan said.

"My God, I can't imagine it, it's bigger than twenty Yansheng Villages, no, forty Yansheng Villages." Qi Zhuang said.

"Let's find it so hard......" Wang Yuan said.

"Where is its main entrance?" Qi Zhuang said.

"Most of the ancient cities took the north gate as the main gate." Zhao Bin said.

"Which side is north?" Wang Yuan asked.

"It looks like there!" Xiaoying and Qi Zhuang said at the same time, but pointed in different directions.

"I'll ...... We've all turned to ah......" Qi Zhuang said.

Wang Yuan smiled bitterly at the erratic compass in his hand and said, "Let's go down and have a look." ”

"Wait a minute, the main gate of the city is generally tall and majestic, let's see if we can tell the difference from here." Zhao Bin said.

"Can you see with glasses? I just saw the outline of the city, and I couldn't see anything else. Wang Yuan said.

"Forget it...... I thought you could see better than I did. Zhao Bin said.